Read, Reply, Mark, Delete Emails right from the Browser with Gmail™ Notifier Plus Extension.

Gmail™ Notifier Plus is an add-on for Mozilla Firefox which alerts its users of new email messages from Gmail. With improved and minimalistic UI, this add-on is easy to use. Users can also ready, delete or mark the emails, all without need to open Gmail Tab.

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Get Notified When Someone Un-friends You On Facebook.

Unfriend Notify for Facebook is an extension (add-on) for Google Chrome and Mozilla Firefox which notifies you when some one un-friends you from their friend list.

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Block Ads and Adware Intruding your Opera Browsers with Adguard.

Adgurd is an extension for Opera which blocks all types of advertisement like banners, pop-up, video ads, sponsored links etc., The best part of this extension is that it supports  whitelist, multi language filters and you can create a rule for yourself. It also claims to provide protection against phishing and malware. Your get some extra features and premium protection with paid plan.

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Scan for Updates and get Notification from you Favorite Sites without Subscribing with Update Scanner.

Update Scanner is an add-on for Mozilla Firefox which is quite useful for those who want to follow sites but don't have option to follow them. Update Scanner scans your favorited site at regular interval and notifies you when ever any change is made to the site. This is very simple and straight forward add-on, don't expect much unless if you want to make some contribution.

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Chime, One Extension for all Social Network's Notification Needs.

Chime is a simple extension for Google Chrome which has the capability to build feed from all your social network sites like Facebook, twitter, Reddit and more...., and display right from the chrome with the help of one click. Unlike other, you need not sign-in to aggregate your feed, since all the preferences (data) is stored in your computer and not in server.

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Using Google Mail Checker Extension on Google Chrome.

Google Mail Checker is an extension developed by Google for Chrome browsers which displays the number of unread mail from your Gmail (current logged-in) account. You can directly go to inbox by clicking on the Google Mail Checker icon located at top right side of the browser.

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Flagfox add-on, a handy tool to get Technical Information with Shortcut keys.

Flagfox is an add-on developed by Dave G for Mozilla Firefox which shows more than flags of the countries in which the site server is hosted. Flagfox comes handy to web publishers by hosting several tools like Alexa, Geotool, Whois, SiteAdvisor and other tools which helps in improving SEO. You can add custom actions (new sites) by shortcut keys. To know more about Flagfox features, see end of this post.

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Take a Break, a must and should Firefox addon for Workaholics.

Take a Break is a simple but very useful add-on developed by Zen for Mozilla Firefox. This add-on is must and should for those who spend countless hours in-front of computer. Take a Break add-on, on setting reminder, alerts the user with flash/sound for specified amount of time at specified intervals.

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Facebook One, Simple, Non Deviating, Facebook Notification extension for Google Chrome.

Facebook One is an extension developed by 64px for Google Chrome which will alert you on any new notification with its simple user interface (UI). On clicking the specific alert you will directly to that page without need to go facebook homepage first and then to later. You can even search directly from the extension itself.

64px has developed similar extension for Instagram, named as "Instagram for Chrome".

Developer(s): 64px
Language support: English
Home page: 64px
Difficulty:
Availability:
Download: ADD TO CHROME

HOW TO: Installing Facebook One on Google Chrome:

1. Go to Chrome web store an search for Facebook One, or simple click on the above download link and click on "ADD TO CHROME".

2. Now, Google Chrome asks for user permission to add extension to the web browser. Click on "Add" to install extension to web browsers and "Cancel" to stop the installation process. Chrome also displays, what the extension might access on the web browser.

3. Now, a Facebook with message pop up appears at upper right corner of browser, indicating that the extension has successfully integrated with the Chrome.

HOW TO: Using Facebook One on Google Chrome:

1. After successful installation of Facebook one extension you will notice Facebook logo right to URL (address) bar.

2. If you notice only facebook icon then it means that you need to log in. On clicking the facebook icon you will notice no alerts. Observe the below screenshot for difference.

3. Where as if you see facebook icon with number(s), this means, you are logged in with facebook account. Observe the above screenshot for difference.

4. When logged in, clicking on the specific notification will load specific facebook notification page. For example, if I click on "Messages", it will load facebook messages page directly.

HOW TO: Disable/Remove Facebook One from Google Chrome:

1. Go to Chrome Setting > Tools > Extensions, or simply type "chrome://chrome/extensions/" in URL bar.

2. Now, un-tick the Facebook One to temporarily disable the extension. Click on the dustbin icon and you will be greeted with pop-up, click "Remove" to remove the extension from Google Chrome.

Find out who is tracking you in real-time with Collusion, addon for Mozilla Firefox.

Collusion is an experimental add-on (extension) for Mozilla Firefox, a brainchild of Atul Verma which lets you see which websites are using 3rd party cookies to keep an eye on you with their dot connectors. All the data shown is real time in spider web like UI connection. Find more about the Collusion project.

Developer(s): Jono X, Dethe Elza and others.
Language support: English
Home page: Collusion, github/collusion
License: Custom License
Difficulty:
Availability:
Download: Add to Firefox

HOW TO: INSTALLING COLLUSION ON MOZILLA FIREFOX:

1. Go to Collusion Mozilla addon page, or simply click on the above download link and click on "Add to Firefox".

2. If Mozilla Firefox asks user permission for installation of addon. Click "Allow" to continue installation, leave it to abort.

3. Collusion installation box pops-up. Click "Install" to continue installing addon, "Cancel" to abort installation.

4. On successful installation, a message pops-up confirming the same.

HOW TO: USING COLLUSION ON MOZILLA FIREFOX:

1. Now, you can see Collusion add-on on the right side of the add-on bar. If you don't see Add-on bar, press "Ctrl"+"/".

2. Click on the collusion add-on to see which sites are watching you and how they linked. All this information are in real time.

3. Hover/Click on circle to know more about site.

Link between various sites, below screenshot shows google.analytics.com serves a link among theverge.com, engadget.com and google.com .

4. If the spiral are extended links are not visible on the screen. Click (LMB) any where on the Collusion webpage and move in the desired direction.

HOW TO: DISABLE/REMOVE COLLUSION FROM MOZILLA FIREFOX:

1. Click on the Firefox, located at left upper corner of the web browser and go to "Add-ons".

or press "Alt", Menu bar pops-up, then go to Tools > Add-ons, or you can simply use shortcut key "Ctrl+Shift+A" to access addon (extension) manger.

2. Now, click on "Disable" to disable the addon temporarily or click "Remove" to remove the addon permanently from the browser.

NOTE: This add-on doesn't require restart for the actions to take effect.

Stop Cookies invasion with Self-Destructing Cookies add-on for Mozilla Firefox.

Self-Destructing Cookies (SDC) is an add-on (Extension) developed by Ove for Mozilla Firefox which automatically removes internet cookies on closing browser's tab by default. The other option includes "after you close the browser" and "never" which mean you are whitelisting. This add-on make sure that the website will able to recognize as long as the web session is active and not as long as you are on web. Self-Destructing Cookies is designed in such a way that it automatically detects tracking cookies based on their behavior and removes them immediately. Know more with FAQs

Developer(s): Ove
Language support: English
Home page: Self-Destructing Cookies
License: GNU General Public License, version 2.0
Difficulty:
Availability:
Download: Add to Firefox

HOW TO: INSTALLING SELF-DESTRUCTING COOKIES ON MOZILLA FIREFOX:

1. Go to Self-Destructing Cookies Mozilla addon page, or simply click on the above download link and click on "Add to Firefox".

2. If Mozilla Firefox asks user permission for installation of addon. Click "Allow" to continue installation, leave it to abort.

3. Self-Destructing Cookies installation box pops-up. Click "Install" to continue installing addon, "Cancel" to abort installation.

4. On successful installation you will be redirected to first run page.

HOW TO: USING SELF-DESTRUCTING COOKIES ON MOZILLA FIREFOX:

1. After installation of the addon you will see Self-Destructing Cookies in Addon bar. If you don't see Addon bar, press "Ctrl" + "/". You get pop-up notification when ever cookies are removed. You can disable pop-up in SDC preference (option) page.

2. By default SDC removes cookies when you close the browser tab, active webpage. You can change this by clicking on the SDC icon in the addon bar. Note: This change will only apply for the domain (webpage) which you are active or opened. For example, if I wish not to delete cookies from twitter then when I am on twitter page, I click on the SDC icon and change it to "never".

3. You tweak a lot at SDC options page. To access, go to addons manager  "Ctrl+Shift+A" and go through SDC addon.

4. Different SDC color icon represents different preference.

HOW TO: DISABLE/REMOVE SELF-DESTRUCTING COOKIES FROM MOZILLA FIREFOX:

1. Click on the Firefox, located at left upper corner of the web browser and go to "Add-ons".

or press "Alt", Menu bar pops-up, then go to Tools > Add-ons, or you can simply use shortcut key "Ctrl+Shift+A" to access addon (extension) manger.

2. Now, click on "Disable" to disable the addon temporarily or click "Remove" to remove the addon permanently from the browser.

NOTE: This addon doesn't require restart for the actions to take effect.

Amazon 1Button, Amazon official add-on for Mozilla Firefox for easy online shopping.

Amazon 1Button app is an official add-on developed by Amazon for Mozilla Firefox. This extension aims to make shopping simple with 1-click. Other feature of 1Button includes Today’s (Daily) deals, Top ten - Check out what’s popular across categories, Add to Wish List, Price Compare, Amazon Smart Search - Search Amazon and the Web at the same time, Cloud Player, Cloud Drive and Cloud Reader - Read Kindle books instantly in your Web browser. Amazon offer localized support in all 9 locales, including USA, CANADA, FRANCE, DEUTSCHLAND (GERMANY), ITALY, UNITED KINGDOM, SPANISH, JAPAN, CHINA.

Developer(s): Amazon
Language support: English, French, Italian, Deutsch, Spanish, Chinese and Japanese.
Home page: Amazon App
Difficulty:
Availability:
Download: Add to Firefox

HOW TO: INSTALLING EBAY SIDEBAR ON MOZILLA FIREFOX:

1. Go to Amazon 1Button Mozilla add-on page, or simply click on the above download link and click on "Continue to Download " and "Accept and Install" if you agree with Amazon's Terms and Conditions.

2. If Mozilla Firefox asks user permission for installation of addon. Click "Allow" to continue installation, leave it to abort.

3. Amazon 1Button installation box pops-up. Click "Install" to continue installing addon, "Cancel" to abort installation.

4. On successful installation, a message pops-up confirming the same. Now, you can see the amazon add-on to right side of URL bar.

5.This add-on doesn't require restart to activate the addon.

HOW TO: USING AMAZON 1BUTTON ON MOZILLA FIREFOX:

1. After successful installation of Amazon 1Button extension you will be redirected to Amazon's locale page.

If you directed to different locale page, follow the below steps to change the locale (country) preference. If you don't understand language, just follow the steps shown below.

2. You will be notified when ever there is Special Deal or Deal for the day (Today's Deal).

3. You can change alert's preference by clicking on Settings (Wheel) icon and go to Alerts Tab and don't forget to save preference.

HOW TO: DISABLE/REMOVE TURN OFF THE LIGHTS FROM MOZILLA FIREFOX:

1. Click on the Firefox, located at left upper corner of the web browser and go to "Add-ons".

or press "Alt", Menu bar pops-up, then go to Tools > Add-ons, or you can simply use shortcut key "Ctrl+Shift+A" to access addon (extension) manger.

2. Now, click on "Disable" to disable the addon temporarily or click "Remove" to remove the addon permanently from the browser.